function mvf_field_update_instance in Measured Value Field 7

Implements hook_field_update_instance().

File

./mvf.module, line 1054

Define a field type of measured value.

Code

function mvf_field_update_instance($instance, $prior_instance) {
  $field_map = field_info_field_map();
  if (in_array($field_map[$instance['field_name']]['type'], mvf_field_types())) {

    // Notify each unit suggester if its status has changed.
    $field = field_info_field($instance['field_name']);
    $measure = mvf_measure_extract($field);
    $unit_suggesters = mvf_get_unit_suggester();
    $view_modes = array_unique(array_merge(array_keys($instance['display']), array_keys($prior_instance['display'])));
    $view_modes[] = NULL;
    foreach ($view_modes as $view_mode) {
      foreach ($unit_suggesters as $unit_suggester) {
        $statuses = array(
          'prior' => array(
            'instance' => $prior_instance,
            'status' => FALSE,
          ),
          'current' => array(
            'instance' => $instance,
            'status' => FALSE,
          ),
        );
        foreach ($statuses as $k => $v) {
          if ($view_mode && !isset($v['instance']['display'][$view_mode])) {
            $statuses[$k]['status'] = FALSE;
          }
          else {
            $statuses[$k]['status'] = mvf_unit_suggester_info($unit_suggester, $field, $v['instance'], $view_mode);
            $statuses[$k]['status'] = $statuses[$k]['status']['enable'];
          }
        }
        if ($statuses['prior']['status'] != $statuses['current']['status']) {
          $callback_name = $statuses['current']['status'] ? 'enabled callback' : 'disabled callback';
          $function = ctools_plugin_get_function($unit_suggester, $callback_name);
          if ($function) {
            $settings = $statuses['current']['status'] ? mvf_unit_suggester_info($unit_suggester, $field, $statuses['current']['instance'], $view_mode) : mvf_unit_suggester_info($unit_suggester, $field, $statuses['prior']['instance'], $view_mode);
            $function($measure, $field, $instance, $view_mode, $settings, $unit_suggester);
          }
        }
      }
    }
  }
}